'Game of Thrones' Actress Had Two Brain Aneurysms

"Game of Thrones" actress Emilia Clarke disclosed Thursday that she's had two surgeries for brain aneurysms.

In 2011, she developed a sudden, severe headache while working out and was rushed to a hospital. Doctors discovered two brain aneurysms, which occur when a blood vessel in the brain has a weak spot that causes it to bulge and fill with blood, ABC News reported.